ITU-T Recommendations

The definition of basic network slicing technology functions and processes has laid a solid foundation for the first wave of IMT-2020 deployment and commercial use of network slicing services. As an end-to-end logical network that is customized on demand, slicing can provide differentiation security capabilities: First, the IMT-2020 network slicing provides the supporting security measures for the differentiated network implementation. Second, the IMT-2020 network supports some optional security measures at the slice level. Some security measures can also provide multiple security options and operators may own different security resources. These may bring different degrees of security guarantee or non-security performance. Slice customers also have specific security requirements and may request customized network slices with different security protection levels from slice operators. There exist some challenges for the slice customers or the slice operators choosing the security capabilities of their slices such as management cost and definition inconsistency, etc. The objective of Recommendation ITU-T X.1816 is to provide a description of differentiated IMT-2020 network slice security capabilities and guidelines for classifying the IMT-2020 network slice security capabilities and IMT 2020 network slice security to help the ecosystem more clearly understand and choose the slicing security capabilities.